<template>
    <div>
        <!--面包屑导航区-->
<el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
 
</el-breadcrumb>
   <!-- 卡片视图 -->

   <el-card>
    
  <!-- 搜索和添加区域 -->
  <el-row :gutter="20">
  <el-col :span="10">
       <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
       </el-input>
  </el-col>
  <el-col :span="4">
      <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
  </el-col>
  </el-row>
  <!-- 用户列表区域 -->
  <el-table :data="userlist" border stripe>
    <el-table-column type="index"></el-table-column>
    <el-table-column prop="username" label="姓名"></el-table-column>
     <el-table-column prop="email" label="邮箱"></el-table-column>
      <el-table-column prop="mobile" label="电话"></el-table-column>
       <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template slot-scope="scope">
                     <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
         <el-table-column  label="操作" width="180px">
           <template slot-scope="scope">
              
             <!-- 分配角色按钮 -->
             <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
             <!-- 删除 -->
             <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
             <!-- 修改 -->
              <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
               </el-tooltip>
           </template>
         </el-table-column>

  </el-table>
  <!-- 分页功能 -->
   <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
   </el-card>
   <!-- 添加用户对话框,visible.async的布尔值决定对话框的显示和隐藏 -->
   <el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"  
  width="50%" @close="addDialogClosed">
  <!-- 内容主体区域 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户数据的对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%" @close="editDialogClose">
 <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
   <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
  </el-form-item>
   <el-form-item label="手机号" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
 </el-form>
 <!-- 按钮部分 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed"
  >
 <div>
   <p>当前用户:{{userInfo.username}}</p>
   <p>当前角色:{{userInfo.role_name}}</p>
   <p>分配新角色:
     <el-select v-model="selectedRoleId" placeholder="请选择">
     <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
   </p>
 </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>



</template>

<style lang="less" scoped>

</style>



<script>
export default {
    data(){
      var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法的邮箱"));
    };

    //验证手机号的规则;
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的手机号"));
    };
    //一般需要回调的属性和数据放在return
        return{
          //获取用户列表的参数对象
          queryInfo:{
               query:'',
               //当前页数
               pagenum:1,
               //当前每一页显示多少条数据
               pagesize:2 
          },
          userlist:[],
          total:0,
          addDialogVisible:false,//控制添加用户对话框的显示和隐藏
          //添加用户的表单数据
          addForm:{
            username:'',
            password:'',
            email:'',
            mobile:'',
          },
          //添加表单的验证规则对象
          addFormRules:{
            username:[
               {required:true,message:'请输入用户名',trigger:'blur'},
               {min:3,max:10,message:'用户名的长度在3-10个字符之间',trigger:'blur'}
            ],
            password:[
               {required:true,message:'请输入密码',trigger:'blur'},
               {min:6,max:15,message:'密码的长度在6-15个字符之间',trigger:'blur'}
            ],
            email:[
               {required:true,message:'请输入邮箱',trigger:'blur'},
               {validator:checkEmail,trigger:'blur'},
            ],
            mobile:[
               {required:true,message:'请输入手机号码',trigger:'blur'},
                {validator:checkMobile,trigger:'blur'}
            ]
          },
          //控制修改用户对话框的显示和隐藏
          editDialogVisible:false,
          //查询到的用户信息对象
          editForm:{},
          //修改表单的验证规则对象
          editFormRules:{
            email:[
              {required:true,message:'请输入用户名',trigger:'blur'},
              {validator:checkEmail,trigger:'blur'},
            ],
            mobile:[
              {required:true,message:'请输入手机号码',trigger:'blur'},
              {validator:checkMobile,trigger:'blur'}
            ]
          },
          //控制分配角色对话框的显示与隐藏
          setRoleDialogVisible:false,
          //需要被分配角色的用户信息
          userInfo :{},
          //所有角色的数据列表
          rolesList:[],
          //已选中的角色id值
          selectedRoleId:''
        }

    },
    created(){
        this.getUserList();
    },
    methods:{
      async  getUserList(){
        const {data:res}  = await this.$http.get('users',{params:this.queryInfo})
        if(res.meta.status!==200) {
            return this.$message.error('获取用户列表失败');
               }
               this.userlist = res.data.users;
               this.total = res.data.total;
               
               console.log(res);
        },
        //监听pagesize改变的事件
        handleSizeChange(newSize){
          this.queryInfo.pagesize = newSize;
          //重新请求数据
          this.getUserList();
        },
        //监听页面值改变的事件
        handleCurrentChange(newPage){
           this.queryInfo.pagenum = newPage;
           //重新请求数据
           this.getUserList();
        },
        //监听switch开关的状态
        async  userStateChange(userinfo){
            console.log(userinfo) 
            const {data:res}= await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
          if(res.meta.status!=200) {
            userinfo.mg_state = !userinfo.mg_state;
            return this.$message.error('用户状态更新失败')
          }
          this.$message.success('用户状态更新成功');
        },
        //监听用户对话框的关闭事件
        addDialogClosed(){
           this.$refs.addFormRef.resetFields();
        },
        //修改用户数据对话框的关闭事件
        editDialogClose(){
                this.$refs.editFormRef.resetFields();
        },
        //点击按钮添加用户
        addUser(){
          this.$refs.addFormRef.validate(async valid =>{
            if(!valid)return
            //可以发起添加用户的网络请求
        const {data:res} =  await this.$http.post('users',this.addForm)
        if(res.meta.status!=200) {
          this.$message.error('添加失败');
        }
        this.$message.success('添加用户成功');
        //隐藏对话框
        this.addDialogVisible = false;
        this.getUserList();
          })
        },
        //展示编辑用户的对话框
      async  showEditDialog(id){
          console.log(id);
          this.editDialogVisible=true;
       const {data:res} = await this.$http.get('users/'+id);
       if(res.meta.status!=200)
      { 
        return this.$message.error('查询失败');     
      }
         this.editForm = res.data;
        },
        //修改用户信息并提交,使用validate进行预验证
       editUserInfo(){
         this.$refs.editFormRef.validate(async valid =>{
          if(!valid) return
          //发起修改用户
         const {data:res}=await this.$http.put('users/'+this.editForm.id,{
            email:this.editForm.email,
            mobile:this.editForm.mobile
          })
          if(res.meta.status!=200) {
            return this.$message.error('修改不成功')
          }
          //关闭对话框
          this.editDialogVisible=false
          //刷新数据列表
          this.getUserList()
          //提示修改成功
          this.$message.success('修改成功')
        })
       },
       //根据id删除对应的用户信息
        async removeUserById(id){
        //弹框询问用户是否删除数据
          const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
        ).catch(err  => err)
        //如果用户确认删除，则返回值为字符串confirm
        //如果用户取消删除，原本就会报错，但是使用catch可以使得confirmResult值变为cancle，返回值为字符串cancle
        if(confirmResult!='confirm'){
          return this.$message.info('已取消删除')
        }
         const {data:res} = await this.$http.delete('users/'+id)
    if(res.meta.status!=200){
      return this.$message.error('删除失败')
    }
    this.$message.success('删除成功')
     this.getUserList();
},
//展示分配角色的对话框
async setRole(userInfo){
    this.userInfo = userInfo
    //在展示对话框之前获取所有角色列表
    const {data:res} = await this.$http.get('roles')
    if(res.meta.status!=200){
      return this.$message.error('获取角色列表失败')
    }
    this.$message.success('获取角色列表成功')
    this.rolesList = res.data,
    this.setRoleDialogVisible=true

  },
  //点击按钮分配角色
async saveRoleInfo(){
       if(!this.selectedRoleId){
         return this.$message.error('请选择要分配的角色')
       }
      const {data:res}  =  await  this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
      if(res.meta.status!=200){
        return this.$message.error('分配失败')
      }
      this.$message.success('分配成功')
      this.getUserList(),
      this.setRoleDialogVisible = false
 },
 //分配角色对话框的关闭事件，触发后
 setRoleDialogClosed(){
           this.selectedRoleId = '',
           this.userInfo = {}
 }
       
    },
}
</script>